Abstract: A device includes a fin extending from a semiconductor substrate; a gate stack over the fin; a first spacer on a sidewall of the gate stack; a source/drain region in the fin adjacent the first spacer; an inter-layer dielectric layer (ILD) extending over the gate stack, the first spacer, and the source/drain region, the ILD having a first portion and a second portion, wherein the second portion of the ILD is closer to the gate stack than the first portion of the ILD; a contact plug extending through the ILD and contacting the source/drain region; a second spacer on a sidewall of the contact plug; and an air gap between the first spacer and the second spacer, wherein the first portion of the ILD extends across the air gap and physically contacts the second spacer, wherein the first portion of the ILD seals the air gap.

Abstract: A system for off-line editing a web page of a to-be-sold article using a mobile electronic device includes an editing unit to be installed in the mobile electronic device. The editing unit allows a user of the mobile electronic device to set properties of the web page and the to-be-sold article using a property setting interface, and generates image frames associated with the properties set by the user. Then, the editing unit generates the web page according to the image frames. The editing unit is configured to transmit the web page and the properties to a server so that the server is operable to generate and store article information of the to-be-sold article according to the properties.